Preparation of unsaturated epoxy ester resin and...

C - Chemistry – Metallurgy – 08 – G

Patent

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C08G 59/34 (2006.01) C08G 59/17 (2006.01) C08G 59/42 (2006.01) G03F 7/028 (2006.01) G03F 7/038 (2006.01)

Patent

CA 2055833

A method of preparing an unsaturated ester resin having improved storage stability is disclosed. An epoxy compound and polymerizable unsaturated monocarboxylic acid are reacted in the presence of a trivalent organic phosphorous catalyst. The catalyst is subsequently deactivated by oxidation. The resin may then be reacted with an acid anhydride.

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